Aviation abbreviation

obstacle clearance height

OCH

ABBR · Radio communications and ATC

At a glance

Meaning of obstacle clearance height

OCH stands for obstacle clearance height in FAA terminology.

More about obstacle clearance height

This abbreviation is used in radio communications and air traffic control. The English reference lists obstacle clearance height with the abbreviation OCH.

FAA abbreviations reflect US aviation usage. Their meaning and permitted use can differ in documents from other countries.